What's the Right Deep Freezer Temperature? 0 degrees Fahrenheit or lower is the ideal deep freezer temperature for most foods. Food items stored at this temperature are safe and can be used indefinitely, although the taste and quality of some items may decrease if stored too long before you use them.
The optimal freezer temperature is 0° Fahrenheit or below (-18° Celsius or below).
The temperature selection on a Chest Freezer is made by setting the dial from ONE to SEVEN, with SEVEN being the coldest. The normal safe freezing level is obtained by setting the control on FOUR. Turning the temperature control all the way to the left to the OFF position will turn the power off to the compressor.
The recommended freezer temperature to keep food safe is at or below 0°F (-18°C), making higher temperatures less reliable for long-term freezer storage. However, freezer temperatures may need to be adjusted by a few degrees to account for factors like location, humidity or outside temperatures.
The correct operating temperature of Chest and Upright Freezers, including smaller, compact models, is -5 to +5 degrees Fahrenheit. In order to take the temperature of solid food, place a thermometer between frozen packages or in some ice cream.
What's the Right Deep Freezer Temperature? 0 degrees Fahrenheit or lower is the ideal deep freezer temperature for most foods. Food items stored at this temperature are safe and can be used indefinitely, although the taste and quality of some items may decrease if stored too long before you use them.
To store frozen foods at best quality, keep the freezer set to maintain zero (0 °F or -17.8 °C). Some combination refrigerator-freezers cannot keep the freezer air that cold. As long as foods are solidly frozen, they will stay safe.
First, cut power to your freezer by unplugging it from the wall or shutting off power to the proper control panel switch. Then reset the freezer's control panel by lowering it to zero or using a shut-off switch. Consult your user manual for specifics on navigating the control panel.
If you suspect your freezer is too cold, check the temperature. Most newer freezers have a built-in thermometer, or you can buy one and place it in the freezer. The ideal temperature for your freezer is 0 degrees Fahrenheit, but -10 to -20 degrees Fahrenheit should be fine.
Place the freezer where the surrounding external temperatures will not exceed 110 degrees F. or fall below 0 degrees F. Position the freezer in a dry, well ventilated room. Do not install it in a closet. Be sure to install the freezer on a floor strong enough to support it fully loaded.
The FDA specifies that meats be stored at 0° F (-18° C) or below, seafood at -1° F (-18° C), and poultry at -2° F (-19° C). Meanwhile, set the refrigerator temperature at or below 40° F (4° C) to keep the vegetable and fruit fresh.
Confused by the numbers on your fridge's temperature dial? The numbers relate to how much power the fridge is using. So the rule is always the same: the higher the number, the colder the fridge.
The good news is that it doesn't ultimately matter much whether you keep your freezer full or empty. The exception is if you live in an area where power outages are common: if that's you, you'll want to keep your freezer full to help keep foods cold longer when you lose electricity.
-45°C Low temperature biomedical chest freezer.
There should be an adjustable thermostat control somewhere. If it's a fridge/freezer, it's usually in the fridge. If it's a standalone freezer, it's usually outside the cooling area, maybe above the door. Turn the knob in the direction that increases cooling.
Your freezer will automatically maintain the temperature level you select. The temperature control dial has 7 settings, plus OFF. "1" is the warmest, "7" is the coldest, and turning the temperature dial to OFF shuts down the compressor.
While -18°C is the ideal, a freezer can still function effectively within a small range. The appropriate freezer temperature range is generally between -16°C to -22°C (3°F to -7°F). However, it's best to aim for -18°C for optimal food preservation and energy efficiency.
Make sure the air vents inside your freezer are clean and not blocked by food items or you may end up with ice and frost buildup. If you have an ice maker that's on but not hooked up to a water supply, this may be the reason your freezer is too cold.
Reasons your freezer isn't freezing may include:
Malfunctioning evaporator fan. Broken start relay. Defective electronic controls. Faulty defrost temperature sensor.
Turn knobs to lower numbers for warmer temperatures and to higher numbers for colder temperatures. The setting of 5 for both the fresh food and freezer section is the recommended setting for most environments.
Be sure to check the electrical outlet, thermostat and airflow around vents. Cooling problems can also be caused by dust on condenser coils, faulty gaskets, clearance space around the refrigerator, a broken or stuck condenser fan or a faulty circuit board.
“A”-rated fridge freezers are the most efficient models, and “G”-rated fridge freezers are the least efficient models, which could use more energy and drive your utility bills up.